standard way of verification:
- place file in root of c:
- check the offset of the beginning of the file with hex-editor (i use winhex)
- delete the file
- empty recycle bin
- wait for 15 seconds
- then start hex editor; make new snapshot of c: and go to same offset
there should be all zero's now...

i created the array and did windows installation AFTER updating the option-rom..

in return, can you send an as-ssd benchmark of those 2 cuties in raid-o ?
cheers,
Jerome.